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-rw-r--r--include/sound/info.h193
1 files changed, 193 insertions, 0 deletions
diff --git a/include/sound/info.h b/include/sound/info.h
new file mode 100644
index 00000000000..1d76bf3cb05
--- /dev/null
+++ b/include/sound/info.h
@@ -0,0 +1,193 @@
+#ifndef __SOUND_INFO_H
+#define __SOUND_INFO_H
+
+/*
+ * Header file for info interface
+ * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/poll.h>
+
+/* buffer for information */
+struct snd_info_buffer {
+ char *buffer; /* pointer to begin of buffer */
+ char *curr; /* current position in buffer */
+ unsigned long size; /* current size */
+ unsigned long len; /* total length of buffer */
+ int stop; /* stop flag */
+ int error; /* error code */
+};
+
+typedef struct snd_info_buffer snd_info_buffer_t;
+
+#define SNDRV_INFO_CONTENT_TEXT 0
+#define SNDRV_INFO_CONTENT_DATA 1
+
+struct snd_info_entry;
+
+struct snd_info_entry_text {
+ unsigned long read_size;
+ unsigned long write_size;
+ void (*read) (snd_info_entry_t *entry, snd_info_buffer_t * buffer);
+ void (*write) (snd_info_entry_t *entry, snd_info_buffer_t * buffer);
+};
+
+struct snd_info_entry_ops {
+ int (*open) (snd_info_entry_t *entry,
+ unsigned short mode, void **file_private_data);
+ int (*release) (snd_info_entry_t * entry,
+ unsigned short mode, void *file_private_data);
+ long (*read) (snd_info_entry_t *entry, void *file_private_data,
+ struct file * file, char __user *buf,
+ unsigned long count, unsigned long pos);
+ long (*write) (snd_info_entry_t *entry, void *file_private_data,
+ struct file * file, const char __user *buf,
+ unsigned long count, unsigned long pos);
+ long long (*llseek) (snd_info_entry_t *entry, void *file_private_data,
+ struct file * file, long long offset, int orig);
+ unsigned int (*poll) (snd_info_entry_t *entry, void *file_private_data,
+ struct file * file, poll_table * wait);
+ int (*ioctl) (snd_info_entry_t *entry, void *file_private_data,
+ struct file * file, unsigned int cmd, unsigned long arg);
+ int (*mmap) (snd_info_entry_t *entry, void *file_private_data,
+ struct inode * inode, struct file * file,
+ struct vm_area_struct * vma);
+};
+
+struct snd_info_entry {
+ const char *name;
+ mode_t mode;
+ long size;
+ unsigned short content;
+ unsigned short disconnected: 1;
+ union {
+ struct snd_info_entry_text text;
+ struct snd_info_entry_ops *ops;
+ } c;
+ snd_info_entry_t *parent;
+ snd_card_t *card;
+ struct module *module;
+ void *private_data;
+ void (*private_free)(snd_info_entry_t *entry);
+ struct proc_dir_entry *p;
+ struct semaphore access;
+};
+
+extern int snd_info_check_reserved_words(const char *str);
+
+#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)
+extern int snd_info_minor_register(void);
+extern int snd_info_minor_unregister(void);
+#else
+#define snd_info_minor_register() /* NOP */
+#define snd_info_minor_unregister() /* NOP */
+#endif
+
+
+#ifdef CONFIG_PROC_FS
+
+extern snd_info_entry_t *snd_seq_root;
+#ifdef CONFIG_SND_OSSEMUL
+extern snd_info_entry_t *snd_oss_root;
+#else
+#define snd_oss_root NULL
+#endif
+
+int snd_iprintf(snd_info_buffer_t * buffer, char *fmt,...) __attribute__ ((format (printf, 2, 3)));
+int snd_info_init(void);
+int snd_info_done(void);
+
+int snd_info_get_line(snd_info_buffer_t * buffer, char *line, int len);
+char *snd_info_get_str(char *dest, char *src, int len);
+snd_info_entry_t *snd_info_create_module_entry(struct module * module,
+ const char *name,
+ snd_info_entry_t * parent);
+snd_info_entry_t *snd_info_create_card_entry(snd_card_t * card,
+ const char *name,
+ snd_info_entry_t * parent);
+void snd_info_free_entry(snd_info_entry_t * entry);
+int snd_info_store_text(snd_info_entry_t * entry);
+int snd_info_restore_text(snd_info_entry_t * entry);
+
+int snd_info_card_create(snd_card_t * card);
+int snd_info_card_register(snd_card_t * card);
+int snd_info_card_free(snd_card_t * card);
+int snd_info_register(snd_info_entry_t * entry);
+int snd_info_unregister(snd_info_entry_t * entry);
+
+/* for card drivers */
+int snd_card_proc_new(snd_card_t *card, const char *name, snd_info_entry_t **entryp);
+
+static inline void snd_info_set_text_ops(snd_info_entry_t *entry,
+ void *private_data,
+ long read_size,
+ void (*read)(snd_info_entry_t *, snd_info_buffer_t *))
+{
+ entry->private_data = private_data;
+ entry->c.text.read_size = read_size;
+ entry->c.text.read = read;
+}
+
+
+#else
+
+#define snd_seq_root NULL
+#define snd_oss_root NULL
+
+static inline int snd_iprintf(snd_info_buffer_t * buffer, char *fmt,...) { return 0; }
+static inline int snd_info_init(void) { return 0; }
+static inline int snd_info_done(void) { return 0; }
+
+static inline int snd_info_get_line(snd_info_buffer_t * buffer, char *line, int len) { return 0; }
+static inline char *snd_info_get_str(char *dest, char *src, int len) { return NULL; }
+static inline snd_info_entry_t *snd_info_create_module_entry(struct module * module, const char *name, snd_info_entry_t * parent) { return NULL; }
+static inline snd_info_entry_t *snd_info_create_card_entry(snd_card_t * card, const char *name, snd_info_entry_t * parent) { return NULL; }
+static inline void snd_info_free_entry(snd_info_entry_t * entry) { ; }
+
+static inline int snd_info_card_create(snd_card_t * card) { return 0; }
+static inline int snd_info_card_register(snd_card_t * card) { return 0; }
+static inline int snd_info_card_free(snd_card_t * card) { return 0; }
+static inline int snd_info_register(snd_info_entry_t * entry) { return 0; }
+static inline int snd_info_unregister(snd_info_entry_t * entry) { return 0; }
+
+#define snd_card_proc_new(card,name,entryp) 0 /* always success */
+#define snd_info_set_text_ops(entry,private_data,read_size,read) /*NOP*/
+
+#endif
+
+/*
+ * OSS info part
+ */
+
+#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)
+
+#define SNDRV_OSS_INFO_DEV_AUDIO 0
+#define SNDRV_OSS_INFO_DEV_SYNTH 1
+#define SNDRV_OSS_INFO_DEV_MIDI 2
+#define SNDRV_OSS_INFO_DEV_TIMERS 4
+#define SNDRV_OSS_INFO_DEV_MIXERS 5
+
+#define SNDRV_OSS_INFO_DEV_COUNT 6
+
+extern int snd_oss_info_register(int dev, int num, char *string);
+#define snd_oss_info_unregister(dev, num) snd_oss_info_register(dev, num, NULL)
+
+#endif /* CONFIG_SND_OSSEMUL && CONFIG_PROC_FS */
+
+#endif /* __SOUND_INFO_H */